Heavy Duty High Strength Belt Tensioner for 05-23 5.7/6.1/6.4L HEMI By HHP Racing

So you slapped a supercharger on your ride and now your serpentine belt is slipping like it’s late for a banana peel convention? Don’t worry—we’ve got the cure. This heavy-duty, high-strength belt tensioner is the unsung hero your forced induction setup deserves.

Designed as a direct replacement for the wimpy factory tensioner, this beefcake of a part solves a major issue in supercharged builds: belt slippage. That stock spring just isn’t built to keep up when your belt goes from turning an alternator to feeding a supercharger that’s gulping down 30–40 horsepower. That’s like asking your dog to tow your RV. Nice try.

This tensioner cranks up the clamping force, keeping the belt tight and right across your blower pulley. No more slip, no more belt-flinging drama when you drop a gear and disappear. Bonus points: the idler wheel is metal, not cheap plastic. You know… like it should be when your engine bay becomes a boost jungle gym.

Perfect for higher boost applications, built motors, or any manual transmission car with a positive displacement supercharger—because let’s face it, those sudden shifts and throttle lifts can whip a belt around like it owes you money.

Pro tip: you will need a longer belt due to the longer arm and beefier pulley size. It’s worth it. Trust us.

Oh, and before you get any bright ideas—this tensioner does NOT fit Ram 1500/2500/3500 models. Sorry Ram fam, this one’s not your flavor.

Ready to give your belt the tension therapy it deserves? Install this unit and keep your boost where it belongs—under control and under pressure.